gecko-dev/widget/public/nsIFontSizeIterator.h

48 строки
1.6 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef nsIFontSizeIterator_h__
#define nsIFontSizeIterator_h__
#include "nsISupports.h"
class nsString;
// {285EF9B1-094A-11d3-9A87-0050046CDA96}
#define NS_IFONTSIZEITERATOR_IID \
{ 0x285ef9b1, 0x94a, 0x11d3, { 0x9a, 0x87, 0x0, 0x50, 0x4, 0x6c, 0xda, 0x96 } };
class nsIFontSizeIterator : public nsISupports
// Font sizes are identified with doubles (e.g., for the possibility of fractional sizes from MM, etc.).
// |Get| and |Advance| are distinct to facility wrapping with C++ objects as standard iterators.
{
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_IFONTSIZEITERATOR_IID)
NS_IMETHOD Reset() = 0;
// does not need to be called initially, returns iterator to initial state
NS_IMETHOD Get( double* aFontSize ) = 0;
// returns an error when no more sizes are available
NS_IMETHOD Advance() = 0;
// returns an error when no more sizes are available
};
#endif